Your credit score is one of the most important numbers in your financial life. It affects whether you can get a mortgage, how much you can borrow, and what interest rate you pay. In 2026, understanding credit scores matters more than ever, because it affects the cost of money. This step-by-step guide explains what credit scores are, how they work, and how to improve yours for a mortgage.
Reviewed by: John Tappan, NMLS #394171 | Fact-Checked ✓
Step 1: What Is a Credit Score?
A credit score is a three-digit number that summarizes your creditworthiness. It ranges from 300 (lowest) to 850 (highest). Lenders use it to predict how likely you are to pay back a loan on time.
The most common credit score is the FICO score. FICO stands for “Fair Isaac Corporation,” the company that created the scoring model. Most mortgage lenders use FICO scores from all three credit bureaus (Equifax, Experian, TransUnion) and typically take the middle score for their decision.
Step 2: Understand FICO Score Categories
FICO scores fall into these categories:
- Exceptional (800-850): Best rates and terms
- Very Good (740-799): Very good rates and terms
- Good (670-739): Good rates, standard terms
- Fair (580-669): Higher rates, some restrictions
- Poor (300-579): Difficult to qualify for most mortgages
Following the September 16, 2026 Fed hike, the rate spread between tiers grew wider. A 780 FICO borrower might get 6.75% while a 640 FICO borrower gets 7.5% or higher on the same loan.
Step 3: Learn What Makes Up Your FICO Score
FICO scores use five main factors with different weights:
Payment History (35% of score) Whether you pay bills on time. Late payments, collections, bankruptcies, and foreclosures hurt this most. A single 30-day late payment can drop your score 50-100 points.
Credit Utilization (30% of score) How much of your available credit you’re using. Total balances divided by total credit limits. Best scores come from keeping utilization below 10%. Above 30% starts hurting your score noticeably.
Length of Credit History (15% of score) How long you’ve had credit accounts. Older accounts help your score. Closing old accounts can hurt because it reduces your average account age.
Credit Mix (10% of score) Having different types of credit (credit cards, auto loans, mortgages, student loans). Diverse credit mix slightly boosts scores.
New Credit (10% of score) Recent credit applications and new accounts. Too many recent inquiries or new accounts can hurt your score temporarily.
Step 4: Get Your Credit Reports
Federal law entitles you to a free credit report from each bureau annually. Get them at https://www.annualcreditreport.com — the only official free source authorized by federal law. Review each report for:
- Accounts you don’t recognize
- Late payments you actually made on time
- Balances that don’t match your records
- Old paid-off debts still showing as open
- Errors in personal information
Dispute any errors immediately. The credit bureau has 30 days to investigate.
Step 5: Understand How Credit Scores Affect Your Mortgage
Your credit score directly affects your mortgage in several ways:
Interest rate. Higher FICO scores get lower rates. The difference between 780 and 620 FICO can be 0.75% to 1.50%. On a $400,000 mortgage over 30 years, this can add up to $65,000-$130,000 in extra interest.
Loan amount qualification. Lower scores may qualify for less because higher rates reduce your buying power. See the how much mortgage can I qualify for guide for details.
Down payment requirements. Lower scores may require larger down payments. FHA borrowers with 500-579 FICO must put 10% down instead of 3.5%.
Loan type availability. Some loan types require minimum FICO scores. Conventional typically needs 620+. FHA accepts 500+. VA has no VA-imposed minimum but most lenders want 620+.
Mortgage insurance costs. PMI rates are tiered by credit score. Lower scores pay higher PMI premiums.
Lender availability. Some lenders have minimum credit score “overlays” above the loan program requirements. Lower scores limit your lender choices.
Step 6: Improve Your Score Before Mortgage Applications
Take these steps at least 6-12 months before applying for a mortgage:
Pay all bills on time. Set up automatic payments to prevent missed due dates. Even one 30-day late payment hurts significantly.
Pay down credit card balances. Reduce utilization to below 10% for best results. Pay down high-limit cards first for maximum score impact.
Don’t close old accounts. Closing reduces available credit (hurting utilization) and eventually reduces account age.
Don’t open new credit. Every new application generates a hard inquiry. Multiple recent inquiries hurt your score.
Dispute errors promptly. Every removed error potentially adds points to your score.
Ask for credit limit increases. On existing cards, increased limits reduce utilization without changing your spending.
Pay down installment loans. Reducing balances on car loans and student loans helps, but not as much as credit card utilization.
Step 7: Understand What Doesn’t Work
Some common credit score advice is myth or misleading:
- Paying off collections doesn’t automatically remove them — settled collections may still show as negative
- Checking your own credit doesn’t hurt your score — this is a “soft inquiry”
- You don’t need to carry a credit card balance — pay in full monthly is fine
- Closing accounts doesn’t remove negative history — closed accounts stay 7-10 years
- Credit repair companies rarely deliver promised results — most just dispute items you can dispute yourself for free
Credit Report FAQs:
What exactly is a Credit Report?
A credit report is a printed record of your credit activities over your life. It displays a list of credit-card accounts & installment loans you may have. It also notes the balances, and the frequency you make your payments. In addition to credit accounts, it shows if any negative action has been reported against you because of negligence like a collection or bankruptcy.
Where Do Credit Reports Originate?
There are companies that sole purposes are to gather and sell credit information. They are called a consumer reporting agency , also known as CRA. These types of companies collect information about your credit activities, store it in their databases, and charge a fee for providing the information. Credit bureaus are the most commonly known CRA. Equifax, Experian, and Trans Union are the leading credit bureaus used for loan qualifying.
What is a Credit Rating?
Credit ratings are created from each bureau and listed on your credit report. The detail your history of borrowing, and re-payment records. High Credit Ratings cans help you maximize low rate, and increase your purchase power or credit limits. Low ratings can significantly hinder your credit limits and quite often bad credit with low credit scores will eliminate your eligibility for many mortgage and home equity loan programs.
Since your credit report influences whether you are able to buy a home and get a job, it is extremely important to protect your credit rating by making loan and bill payments on time and by not taking on more debt than you can handle.
What Type of Information Is on Your Credit Report?
Identification: full name of borrower, any known aliases (AKA’s), addresses history, social security number, date of birth, name of employers.
Credit Information: accounts you have established with banks, retail stores that issue credit, credit-card companies, lenders
Public Records: State and county court records on bankruptcy, tax liens, or monetary
Recent Inquiries: The names of those who have obtained copies of your credit report within the past year
Why Should You Obtain a Copy of Your Credit Report?
It’s kind of like getting dressed for an important interview. You want to look good and professional, and before you head off to the interview you will look in the mirror to make sure you are ready. Your credit report is your resume, reference letter , all in one for the lender to either grant you the loan or deny you credit. It’s imperative to see a copy of your credit report before you apply for a mortgage, line of credit or home equity loan.
How can you Correct Errors on Your Credit Report?
If you find an error, find the proof of the mistake and contact the consumer credit reporting agency. The company that reported the erroneous information, must then rectify or remove any incorrect data. Unfortunately, this process can take anywhere from 30-60 days.
What Should You Do if You Are Denied Credit because of Credit Score?
The lender who turned you down for the loan, must give you the following information: name and address of the credit bureau that produced the credit report. At that point, you have up to 30 days to request a copy of your credit report for Free. Credit bureau are required to share with you all information contained in your credit report.
How Long Does Information Stay on Your Credit Report?
In most cases, your credit history information is reported for 7 years. However bankruptcy filings, will remain on credit report for 10 years.
How Do You Get a Copy of Your Credit Report?
Contact the credit bureaus listed below to request a copy of your credit score.
To learn more about credit organizations in your area that help people solve credit problems, contact the National Foundation for Consumer Credit at (800) 388-2227.
Habla Espanol call (800) 682-9832.
The Federal Reserve Bank of San Francisco has several other consumer brochures.
These brochures are posted on our web site at: frbsf.org/publications/consumer.
For More Information:
National Foundation for Consumer Credit
8611 Second Avenue
Silver Spring , MD 20910
nfcc.org
To contact the three major credit bureaus:
Equifax
P.O. Box 105873
Atlanta , GA 30348
equifax.com
(800) 685-1111
Trans Union
Consumer Disclosure Center
P.O. Box 1000
Chester , PA 19022
transunion.com
(800) 916-8800 or (800) 888-4213
Experian
P.O. Box 2104
Allen , TX 75013-2104
experian.com
Disclaimers
This article provides general educational information — it is NOT financial or credit advice. Individual credit situations vary widely. FICO scoring models change and different lenders use different score versions. Credit reports and scores from free consumer services may differ from what mortgage lenders see. For questions about your specific credit situation, consult a HUD-approved housing counselor (find one at https://www.hud.gov/findacounselor). BD Nationwide Mortgage is NOT a lender and does not provide credit repair services or offer credit score guarantees.